intc: add an interface to gather statistics/informations on interrupt controllers

This interface will be used by HMP commands 'info irq' and 'info pic'.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Message-Id: <1474921408-24710-2-git-send-email-hpoussin@reactos.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Hervé Poussineau 2016-09-26 22:23:23 +02:00 committed by Paolo Bonzini
parent eabb5782f7
commit 120e512b7f
3 changed files with 75 additions and 0 deletions

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@ -17,6 +17,7 @@ common-obj-$(CONFIG_ARM_GIC) += arm_gicv3.o
common-obj-$(CONFIG_ARM_GIC) += arm_gicv3_dist.o common-obj-$(CONFIG_ARM_GIC) += arm_gicv3_dist.o
common-obj-$(CONFIG_ARM_GIC) += arm_gicv3_redist.o common-obj-$(CONFIG_ARM_GIC) += arm_gicv3_redist.o
common-obj-$(CONFIG_OPENPIC) += openpic.o common-obj-$(CONFIG_OPENPIC) += openpic.o
common-obj-y += intc.o
obj-$(CONFIG_APIC) += apic.o apic_common.o obj-$(CONFIG_APIC) += apic.o apic_common.o
obj-$(CONFIG_ARM_GIC_KVM) += arm_gic_kvm.o obj-$(CONFIG_ARM_GIC_KVM) += arm_gic_kvm.o

41
hw/intc/intc.c Normal file
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@ -0,0 +1,41 @@
/*
* QEMU Generic Interrupt Controller
*
* Copyright (c) 2016 Hervé Poussineau
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "hw/intc/intc.h"
#include "qemu/module.h"
static const TypeInfo intctrl_info = {
.name = TYPE_INTERRUPT_STATS_PROVIDER,
.parent = TYPE_INTERFACE,
.class_size = sizeof(InterruptStatsProviderClass),
};
static void intc_register_types(void)
{
type_register_static(&intctrl_info);
}
type_init(intc_register_types)

33
include/hw/intc/intc.h Normal file
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@ -0,0 +1,33 @@
#ifndef INTC_H
#define INTC_H
#include "qom/object.h"
#define TYPE_INTERRUPT_STATS_PROVIDER "intctrl"
#define INTERRUPT_STATS_PROVIDER_CLASS(klass) \
OBJECT_CLASS_CHECK(InterruptStatsProviderClass, (klass), \
TYPE_INTERRUPT_STATS_PROVIDER)
#define INTERRUPT_STATS_PROVIDER_GET_CLASS(obj) \
OBJECT_GET_CLASS(InterruptStatsProviderClass, (obj), \
TYPE_INTERRUPT_STATS_PROVIDER)
#define INTERRUPT_STATS_PROVIDER(obj) \
INTERFACE_CHECK(InterruptStatsProvider, (obj), \
TYPE_INTERRUPT_STATS_PROVIDER)
typedef struct InterruptStatsProvider {
Object parent;
} InterruptStatsProvider;
typedef struct InterruptStatsProviderClass {
InterfaceClass parent;
/* The returned pointer and statistics must remain valid until
* the BQL is next dropped.
*/
bool (*get_statistics)(InterruptStatsProvider *obj, uint64_t **irq_counts,
unsigned int *nb_irqs);
void (*print_info)(InterruptStatsProvider *obj, Monitor *mon);
} InterruptStatsProviderClass;
#endif